Ah the good old days when no one cared about liability and personal injury lawsuits, you built things because they were fun. They’re oblivious to the danger and today we find something to fear at every turn. Are we better off for it?

Growing up in Edinburgh, Scotland, I recall some drivers who usually drove single deckers “converting” double deckers against railway bridges.

Another childhood memory is sitting at the front of the top deck and flinching as the screen hit (smallish) tree branches as we trundled through the city. Presumably the open top tour buses didn’t take those routes.

Since it’s a Spanish picture, I did some research on the background.
Luarca is a town in Asturias. Automóviles Luarca, S. A. (Sociedad Anónima = Incorporated) was an old stagecoach company that had a line that communicated Luarca with Oviedo (the Asturian capital) in about 8 hours in 1899 using steam powered vehicles. Their first gasoline engine was used in 1916 and in 1923 they created the society that appears on the name of the bus (Luarca S. A.).
At the time Asturias was one of the few industrialised regions in Spain, hence the importance.
Ah, and Luarca became ALSA, which is now Spain’s largest intercity bus company, although now it’s owned by National Express.https://www.alsa.es/sobre-alsa/historia